Approximately 41 million people receive speeding tickets in the U.S. every year, paying out more than $6.2 billion per year, according to statistics from the U.S. Highway Patrol published at StatisticBrain.com. That translates to an estimated $300,000 in speeding ticket revenue per U.S. police officer every year. State and local governments often lean on this source of income when they hit financial trouble. A study released in 2009 examined data over a 13-year period in North Carolina, finding a 'statistically significant correlation between a drop in local government revenue one year, and more traffic tickets the next year,' Popular Science reported. So, just as drug cops in Colorado and Washington are cutting budgets after losing revenue from asset and property seizures from marijuana arrests, state and local governments will need to account for a drastic reduction in fines from traffic violations as autonomous cars stick to the speed limit."

Which usually goes back to local law enforcement, or at least a portion of that, but not in all states. There are cities here in Missouri where the local governments made up most of the revenue from traffic violations. A couple cities were famous for this until the state passed some laws prohibiting them from doing this.

Nebraska, I believe, collects all traffic fines revenue and then doles that money out to the schools instead of police departments. Doesn't matter if it's a local cop or a state trooper who pulls you over and issues you the citation, the money goes to the state to prevent what occurred in Missouri.

That $300k number is just absurd. $6.2 billion in fines, divided by $300k per police officer, would imply only 21,000 police officers. There are 34,500 officers in New York City ALONE. Wikipedia puts the total at around 930k sworn officers with arrest powers (765k state/local, plus 44k part-time, plus 120k federal).

Even using only fulltime, and ignoring the Federal officers, would get you to about $8k, not $300k.